The issue with our impact on the nitrogen cycle is that it is exceeding the planetary boundaries significantly. Same for Phosphor https://www.stockholmresilience.org/research/planetary-boundaries.html
However if we look at the countries with the highest use of chemical fertilizers per Capita it is also countries with industrialized agriculture that focus on meat production or cash crops.
https://ourworldindata.org/grapher/fertilizer-per-capita
We use about half of global agricultural lands for animal feed. So the nitrogen fertilizers are not needed to sustain nutrition. They are needed to sustain the meat overconsumption in wealthy countries.
You can only push so much nitrogen and phosphor into the biological cycle w.o. having grave side effects. Acidification, erosion of soil microbiomes, eutrophication of water bodies…
The current amount of fertilizers used are killing the environment and through this reducing crop yields.